973773981811 has 2 divisors, whose sum is σ = 973773981812. Its totient is φ = 973773981810.

The previous prime is 973773981797. The next prime is 973773981881. The reversal of 973773981811 is 118189377379.

It is a weak prime.

It is an emirp because it is prime and its reverse (118189377379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 973773981811 - 2⁷ = 973773981683 is a prime.

It is not a weakly prime, because it can be changed into another prime (973773981881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486886990905 + 486886990906.

It is an arithmetic number, because the mean of its divisors is an integer number (486886990906).

Almost surely, 2^973773981811 is an apocalyptic number.

973773981811 is a deficient number, since it is larger than the sum of its proper divisors (1).

973773981811 is an equidigital number, since it uses as much as digits as its factorization.

973773981811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 64.

The spelling of 973773981811 in words is "nine hundred seventy-three billion, seven hundred seventy-three million, nine hundred eighty-one thousand, eight hundred eleven".